Home / 439,902.20-659,853.30-329,310.20

Finding the Fourth Proportional to 439,902.20, 659,853.30 and 329,310.20

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Solution

The fourth proportional to 439,902.20, 659,853.30 and 329,310.20 is: 493,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,902.20 : 659,853.30 = 329,310.20 : x
  2. Step 2: Convert to fraction form
    439,902.20/659,853.30 = 329,310.20/x
  3. Step 3: Cross multiply
    439,902.20x = 659,853.30 × 329,310.20
  4. Step 4: Simplify right side
    439,902.20x = 217,296,422,193.66
  5. Step 5: Solve for x
    x = 217,296,422,193.66/439,902.20
  6. Step 6: Final answer
    x = 493,965.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.